Using Motion to build a dvd intro

Hi all,
I am fairly new to FCP and just learned the basic of Motion.

I would like to build a 20 sec movie that acts as the dvd menu. I am wandering what kind of method I should use to accomplish the following effects:
Camera zooms into layers of images/video as if it is in a house. I would like to use a certain image/video as the walls of the house.

For starter, I don' t know how to build the walls.

Any pointers/help appreciated.